97e67ac77d80d26af4897acff2a3f6075e0efe7997a67d8194e799006ed5efc9

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2024 14:46

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General

Target

97e67ac77d80d26af4897acff2a3f6075e0efe7997a67d8194e799006ed5efc9.jar
Size

432KB
MD5

8ec9eb589dc78c7e0ad9c8155027a133
SHA1

f4cc5469b945ce8f4c5d266375c28f97636479ff
SHA256

97e67ac77d80d26af4897acff2a3f6075e0efe7997a67d8194e799006ed5efc9
SHA512

0044e07c000634a043aae2b9f42df7f9f1d0dba2462207663c7f0e9e322cb732b19ab0e7f1fdd653b587c0ce19f5efc93fb7e630ff3477e5e98bcb652f723a1c
SSDEEP

6144:VwhA+Jd+Z+qYYQJXELxEG1E3RjdZO8uk/VSADdEwyOygQc8axuk9:VwC+Jd+Q1hENLE3JdU8fsg5XQc8axf9

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4224 icacls.exe

pid	process
4224	icacls.exe

Drops file in Program Files directory 12 IoCs

Processes:

java.exe

description	ioc	process
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb	java.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

java.exe

description pid process target process

PID 944 wrote to memory of 4224 944 java.exe icacls.exe
PID 944 wrote to memory of 4224 944 java.exe icacls.exe

description	pid	process	target process
PID 944 wrote to memory of 4224	944	java.exe	icacls.exe
PID 944 wrote to memory of 4224	944	java.exe	icacls.exe

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\97e67ac77d80d26af4897acff2a3f6075e0efe7997a67d8194e799006ed5efc9.jar
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:944

C:\Windows\system32\icacls.exe
C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
2⤵
- Modifies file permissions
PID:4224

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Filesize
46B

MD5
2cccfdcf95ff09b0962537f8eb5256a9

SHA1
b78bf1ed4249d856fa4b0c3cc3c2331be327ce15

SHA256
f6d1ca1c0bac0d0b228df4c320f46238fbe06c7fc3961ce5ece280f88f5b742b

SHA512
410ee23e36bf3f9e447e482b9c3942c977c673f3926ce74341717b8d60d5d79fb36616d3b7110562f3dd508d7681f7c9e08af8d94f47acdda7b5c9e1c376c245

Download Submit
memory/944-64-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-30-0x000001EE18E10000-0x000001EE18E11000-memory.dmp

Filesize
4KB

Download
memory/944-68-0x000001EE18E10000-0x000001EE18E11000-memory.dmp

Filesize
4KB

Download
memory/944-100-0x000001EE18E10000-0x000001EE18E11000-memory.dmp

Filesize
4KB

Download
memory/944-72-0x000001EE18E10000-0x000001EE18E11000-memory.dmp

Filesize
4KB

Download
memory/944-34-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-47-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-54-0x000001EE18E10000-0x000001EE18E11000-memory.dmp

Filesize
4KB

Download
memory/944-56-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-2-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-19-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-12-0x000001EE18E10000-0x000001EE18E11000-memory.dmp

Filesize
4KB

Download
memory/944-29-0x000001EE18E10000-0x000001EE18E11000-memory.dmp

Filesize
4KB

Download
memory/944-149-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-151-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-152-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-153-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-154-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-155-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-159-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download
memory/944-160-0x000001EE1A6F0000-0x000001EE1B6F0000-memory.dmp

Filesize
16.0MB

Download